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Activities

July 2013 - Advances in Latent Variables Conference, Brescia, Italy

January 2012 - Seminar, Department of Statistical Science, UCL

September 2012 - Workshop on Algebraic Statistics, IST Austria

September 2012 - IEEE Workshop on Machine Learning for Signal Processing, Santander

August 2012 - Linyi University Summer School, Shandong, China

8th May 2012 - Seminar, Department of Statistics, University of Florence

7th May 2012 - Seminar, Department of Finance, Economics and Statistics, University of Perugia

April 2012 - Workshop on Graphical Models, Fields Institute, Toronto

March 2012 - Seminar, Eötvös Loránd University, Budapest

January 2012 - Statistics Seminar, University of Bristol

December 2011 - Computing for Graphical Models, RSS, London

more

 

Papers

2013 a Marginal log-linear parameters for graphical Markov models
(with Thomas Richardson), accepted, JRSS-B
2012 a Graphical methods for inequality constraints in marginalized DAGs
22nd Workshop on Machine Learning and Signal Processing
b Parameter and Structure Learning in Nested Markov Models
(with Ilya Shpitser, Thomas Richardson and James Robins)
UAI-12, Causal Structure Learning Workshop.
2011 a Two algorithms for fitting constrained marginal models
(with Antonio Forcina), submitted
2010 a Maximum likelihood fitting of acyclic directed mixed graphs to binary data
(with Thomas Richardson), UAI-10
  b Transparent parametrizations of models for potential outcomes
(with Thomas Richardson and James Robins), Valencia 9, pp 569-610

 

Other Work

(not to be reproduced without appropriate citation / permission)

2009 Discussion of Generalized Additive Models with Implicit Variable Selection by Likelihood-Based Boosting, G. Tutz and H. Binder
STAT 572 Project; a version of Tutz and Binder's paper can be found here, final version published in Biometrics 62 (2006)
2009 Maximum Likelihood Estimates for Binary Random Variables on Trees via Phylogenetic Ideals
A project for STAT 538 - a version of Zwiernik and Smith's paper can be found here
2007 Rates of Convergence of Non-Parametric Maximum Likelihood Estimators via Entropy Methods

 

Talks

(not to be reproduced without appropriate citation / permission)

Constraints on Marginalised DAGs - Statistics Seminar, University of Florence, May 2012

Marginal log-linear parameters, graphical models and model selection - Statistics Seminar, University of Bristol, January 2012

Variation Independent Parametrizations (with video) - CSI One Day Meeting, September 2011

Parametrizations of Discrete Graphical Models - UW Final Examination, August 2011

Smoothness of Binary Conditional Independence Models - WOGAS3, April 2011

Probabilistic Causal Models: A Short Introduction - ACMS Seminar, February 2011

Parametrizations of Discrete Graphical Models - UW General Examination, December 2010

Factor Analysis and Singularities - Slides from presentation for STAT 591, October 2009

 

Book Review

Lectures on Algebraic Statistics, by Drton, Sturmfels and Sullivant.
SIAM Review, 2011, vol. 53 (1) pp 189-190